Passing pointers to various win32 aPI functions

Hi friends,
I want to create an application simmilar to Microsoft System Information in VB and i'm new to VB.I know some win32 API functions to get necessary system information.Now How can i pass the ptrs to differant API structures(eg SYSTEM INFO structure)?Who is going to help me?

[Lothar Haensler]

if you use the Declarations for the API functions and their Types from the API Viewer Add-In in VB6, you can simple declare a variable of the declared type, fill its elements and pass that to the API functions.